Article with cool maps: http://www.atlasobscura.com/articles/here-are-the-real-boundaries-of-americ… Academic paper: http://journals.plos.org/plosone/article?id=info%3Adoi/10.1371/journal.pone… -- Mara Kaminowitz, GISP GIS Coordinator ......................................................................... Baltimore Metropolitan Council Offices @ McHenry Row 1500 Whetstone Way Suite 300 Baltimore, MD 21230 410-732-0500 ext. 1030 mkaminowitz(a)baltometro.org www.baltometro.org